Apodization is an optical filtering technique, and its literal translation is “removing the foot”. It is the technical term for changing the shape of a mathematical function, an electrical signal, an optical transmission or a mechanical structure. In optics, it is primarily used to remove Airy disks caused by diffraction around an intensity peak, improving the focus.

Patent publication number 2016-218444 (Google Translate)

Release date 2016.12.22

Application date 2015.5.20

Focal length 130.98

F number 2.06

Field of View 9.38

Image height 21.64

Lens total length 159.05

BF 53.99

Even when there is vignetting, a good blurred image at all angle of view

We have not heard anything regarding a new EF 135mm f/2L lens coming in 2017, but we’ll obviously let you know if we do.